Triggered Averaged FFT
Is there a way to create an Averaged FFT that starts/ends on a triggered value from another signal? It seems that the Averaged FFT plots start as soon as the "ARM" button is pressed on the "Measure" tab. However, I would only like to take Averaged FFT data during the same trigger points that I am taking the rest of my data.
yes, it is possible to do this. Here is how to do it:
- go to math and add "Fourier transform".
- Use the settings which are required for your measurement, but set the calculation type to “Block history.
- Add basic statistics and select the FFT channel created earlier as input. Make sure that Average is checked on the output channels.
To use trigger, "Triggered blocks" or Start-Stop blocks can be used.
Attached is also a setup file as an example
Thanks a lot, this was very helpful!